The deepest root of unity, according to Otzrot HaRaayah, Volume 6, Part ב 71:4, lies in the loftiest dimensions of Torah — the inner, esoteric, and philosophical strata — and it is specifically the neglect of these heights across the nation that has caused the splintering of the Jewish people into distant factions and parties, so that their divisions produce practical destruction rather than enriching diversity.
Otzrot HaRaayah, Volume 6, Part ב 71:9 draws a sharp distinction between two kinds of division: one that is blind to the underlying unity at the root of all difference — generating envy, hatred, and ruin — and one in which the force of unity is felt and recognized, so that the very multiplicity of views becomes a source of moral greatness, breadth of heart, and abundant peace; the passage states that the Jewish people by their very nature tend toward division more than any other people, carrying within that tendency the potential for the second and blessed kind.
Otzrot HaRaayah, Volume 6, Part ב 71:13 identifies the practical instrument of unity as sages who are fully committed to Torah in all its dimensions — from its depths to its heights — for when those sages are so engaged, a force of unity branching from the divine light goes forth, encompasses all opinions and inclinations, straightens them, and assigns each its proper role and path; conversely, when those sages turn their backs on the teaching of peace, divisiveness grows destructive.
Orot, The Process of Ideals in Israel, Unification of Ideals frames the current fragmentation as each ideal of the Jewish people appearing separately in different factions because of the great ruin of exile, but declares that the banner of peace among these ideals must ultimately be raised — specifically in the Land of Israel, where the forces and their bearers will meet, and each will find in its counterpart the completion of what is lacking in its own soul; the first flash of redemption's spirit causes a new song to sparkle the moment the divine national ideal meets its revelation through all the religious and national streams from their divine source.
The spiritual foundation underlying all of this is the soul's clinging to the divine — for Shemonah Kevatzim 1:255 teaches that when the soul clings to the knot of life and the light of God with a love of divine attachment, all of a person's traits are straightened on their own, and this inner demand for divine attachment, which comes as a unique unit in the soul of Israel, is higher than any logical thought and spreads, through the flow of divine inspiration, across all communal and individual realms.
Orot HaTeshuvah, Chapter 4:2 and Orot HaTeshuvah, Chapter 13:2 ground this vision further in the experience of return: the supernal teshuvah arises from a flash of the General Good — the divine goodness abiding in all worlds — through which the soul recognizes that all goodness and uprightness within us comes from our alignment with the Whole, making separation from the Whole feel impossible; from this recognition, teshuvah flows in the life of both the individual and the collective.
Ein Aya, Berakhot 2:20 locates the recognition of peace and unity among human beings in an inner awareness of a divine will directed toward peace and oneness — rooted in the understanding that all are brothers before our Father in heaven — and states that it is through such unity and peace that the great treasures of wisdom, justice, and righteousness can come to light.
Orot, Lights of Israel, Holiness of Israel 4:1 adds that those among Israel who continually encompass the spiritual content of the nation at its holy root add a spirit of life and inner encouraging light that connects the entire nation, and that the imaginative faculty which perceives in each Israelite a perfected divine appearance is the product of the prophetic spark that exists solely for Israel's sake.
Orot HaTorah 13:3 contributes the principle that Torah in its fullness cares always for the collective and for the totality of the nation's soul — with individuals elevated within it — and designates the elevation from the particular to the collective across the full breadth of Torah thought, especially in faith and true reverence of heaven, as a sublime innovation of the Torah of the Land of Israel.
Middot HaRa'ayah, Love 1 states simply and absolutely that love must fill the heart toward all, while Otzrot HaRaayah, Volume 6, Part ב 71:32 projects this outward, teaching that as the divine light filters through the channels of intellect, the light of wellbeing, and the necessities of life, the seal of universal peace is impressed generation by generation more deeply upon the national movement, and a recognition will come that the divisions among nations stand not in opposition but in organic relation — like limbs of a body, all seeking the welfare of the whole — an idea that, when it fully unfolds, will renew the face of the world and purify hearts.
Orot, Lights from Darkness, Land of Israel 1:1 grounds all of this in a foundational claim: Eretz Yisrael is not an external acquisition or a mere instrument for national cohesion, but an intrinsic entity bound with the bond of life to the nation, embraced with inner essential qualities together with the nation's very existence — suggesting that the land itself is not incidental to but constitutive of the spiritual unity the nation seeks.
Ma'amar Hador 1 addresses the inner moral and intellectual condition of the generation, noting that despite appearances, the generation is not low or truly sinful — among both fathers and children one finds many good things, refined feelings, and worthy desires — yet something is nonetheless lacking, providing the existential backdrop against which the vision of unity must be understood.